help me answer these as well

The distance of a baseball thrown into the air is given by the function d(:) = -4.9e? + 30: as measured in meters and seconds. Find the functions for velocity and acceleration. How fast is the ball going after 3 seconds? is it heading up or down at that point? If s (5) = 6, v(5) = -1, and a(5) - -11, determine if this object's speed is increasing or decreasing ate = S. Justify